The Google Analytics
migration atlas.

Side-by-side feature maps, SQL migration scripts, and decision frameworks for teams leaving GA4 — built by an ex-Google Analytics consultant.

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GA4

gtag('event', 'purchase', {
  transaction_id: 'T_12345',
  value: 99.00,
  currency: 'EUR',
  items: [{ id: 'sku_1', price: 99 }]
});

plausible('Purchase', {
  props: {
    transaction_id: 'T_12345',
    value: 99,
    currency: 'EUR'
  }
});

_paq.push(['trackEcommerceOrder',
  'T_12345',  // order ID
  99.00,      // grand total
  null, null, null,
  'EUR'
]);

posthog.capture('purchase', {
  transaction_id: 'T_12345',
  value: 99,
  currency: 'EUR'
});

Live event mapping · 24+ destinations · all snippets verified

Pick your migration path

Click any cell. Read the playbook. Run the script.

From / To	PLAUSIBLE	MATOMO	POSTHOG	FATHOM	UMAMI	RUDDERSTACK
GA4	Medium 1-2 weeks	Medium 2-3 weeks	Hard 3-4 weeks	soon	soon	soon
UA	soon	soon	soon	soon	soon	soon
MIXPANEL	soon	soon	soon	soon	soon	soon
SEGMENT	soon	soon	soon	soon	soon	soon
UA^*	→ GA4 1-2 weeks	via GA4	via GA4	via GA4	via GA4	via GA4